*{
    margin: 0;
    padding: 0;
}
.num2{
    width: 100%;
    height: 40px;
    background-color:royalblue;
    color: white;
    font-size: 20px;
    line-height: 40px;
    text-align: center;
}
.process img{
    margin-left: 20px;
    margin-top: 15px;
}
.fot{
    width: 100%;
    height: 50px;
    background-color: black;
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
}
.list-ul2{
    list-style: none;
}
.list-ul2 li{
    float: left;
    width: 20%;
    text-align: center;
    color: white;
    margin-top: 5px;
}
.list-ul2 li a{
    text-decoration: none;
    color: white;
}
.list-ul2 img{
    display: block;
    width: 19px;
    height: 19px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    margin: 0 auto;
}